5213128 has 8 divisors (see below), whose sum is σ = 9774630. Its totient is φ = 2606560.

The previous prime is 5213119. The next prime is 5213129. The reversal of 5213128 is 8213125.

It can be written as a sum of positive squares in only one way, i.e., 4831204 + 381924 = 2198^2 + 618^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5213099 and 5213108.

It is not an unprimeable number, because it can be changed into a prime (5213129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325813 + ... + 325828.

Almost surely, 2^5213128 is an apocalyptic number.

It is an amenable number.

5213128 is a deficient number, since it is larger than the sum of its proper divisors (4561502).

5213128 is a wasteful number, since it uses less digits than its factorization.

5213128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651647 (or 651643 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 5213128 is about 2283.2275401282. The cubic root of 5213128 is about 173.3934932529.

The spelling of 5213128 in words is "five million, two hundred thirteen thousand, one hundred twenty-eight".